Wedding Budget Calculator
The guest list, the lines, and how it gets paid for
Your result will appear here
Fill in the fields on the left and this updates as you type.
Know what this estimate is based on
- Jurisdiction
- General mathematical model
- Scope and limitations
- Planning estimate only. Enter complete, current figures and keep an appropriate buffer for irregular or unexpected expenses.
- Source links checked
- Jul 30, 2026
Built and regression-tested by Smart Tools Lab. It has not been individually reviewed by a licensed financial, tax, or legal professional.
How to use
- 01
Start with the guest count. It is the lever everything else moves on: every guest carries a plate plus a share of rentals, stationery, favours and bar, and the schedule at the bottom reruns the whole wedding across a range of counts.
- 02
Enter catering per head — food and drink ONLY. Do not put the $292 national figure here: that is The Knot's all-in cost per guest, covering the venue and the photographer as well, and using it as a catering rate double-counts most of the wedding.
- 03
Enter the line items: venue and rentals, photography and video, flowers, music, attire and beauty, and everything else. The venue is the largest single line for most couples, around $12,900 nationally.
- 04
Set a contingency percentage. Wedding budgets almost never come in on the first draft, and a budget with no slack turns every surprise into a card balance.
- 05
Enter what is saved or promised, the months until the day, and a card rate. The page then gives you the monthly amount that funds it by the date, and what the shortfall costs if it ends up financed instead — usually more than cutting twenty guests would have saved.
Formula
Catering = guests × catering per head. Line total = catering + venue + photography + flowers + music + attire + everything else. Contingency = line total × the contingency percentage. Total = line total + contingency. Cost per guest = total ÷ guests. The national benchmark shown alongside is your guest count × the all-in average per guest — a comparison figure, never added to anything. Still to find = total − saved. Monthly needed = that gap ÷ months until the wedding. Financed interest ≈ gap × the card rate, over two years.
Example
100 guests, $95 a head for catering, $8,000 of venue, $3,200 of photography, $2,500 of flowers, $1,600 of music, $2,400 of attire and $3,000 of everything else, with a 10% contingency, $12,000 saved and 14 months to go at a 22% card rate. Catering is $9,500 and the quoted lines total $30,200; the contingency adds $3,020, for $33,220 — $332 a guest all-in, against the $292 national average, so $4,020 above what 100 guests cost at the average. Still to find: $21,220, which is $1,516 a month across the fourteen months. Financed instead at 22% the shortfall costs about $4,668 in interest. The schedule makes the lever obvious: the same wedding at 80 guests is $31,130 and at 60 it is $29,040 — cutting forty guests saves $4,180, close to the entire cost of financing the gap.
Definitions
- All-in cost per guest
- The whole wedding divided by the guest count — The Knot's $292 figure. A comparison benchmark, and never a line item to add.
- Catering per head
- Food and drink only, per guest, from your caterer's quote. Always well below the all-in per-guest figure.
- Contingency
- A percentage held back against what the quotes miss. Not padding: it is the vendor who cancels, the rental nobody costed and the guest count that grew.
- Reception venue
- Typically the largest single line, around $12,900 nationally, and the one whose price is set by the guest count more than by anything else.
Good to know
The average, and the distribution hiding behind it
One number does most of the work in this subject, and it is a mean. The Knot Worldwide's 2026 Real Weddings Study — published February 2026, describing 10,474 couples who married during 2025 — puts the average American wedding at $34,000 across 117 guests, or $292 a guest all-in. Two properties of that figure matter more than its size. The first is the shape of what it averages. Wedding spending is bounded below at the price of a licence and unbounded above, so the distribution is skewed hard to the right, and in a right-skewed distribution the mean sits above the middle of the pack. A small number of very large weddings pull it up, and a couple measuring themselves against the average are measuring themselves against a figure most weddings sit beneath. The second is the frame. This is a survey of couples who planned a wedding through a wedding-planning service, and the weddings hardest for such a survey to reach are exactly the cheapest ones — the courthouse ceremony, the elopement, the eighty people in a relative's garden with no vendor involved at all. Neither property makes the number wrong. They make it the wrong anchor for a budget, and there is a sharper way to see why. The average is not a free-standing total: it embeds a guest count. Thirty-four thousand dollars across 117 people is $292 a head all-in. A couple with 200 guests who set a $34,000 budget have not chosen a cheaper wedding — they have chosen $170 a head against a national $292, which is a different event entirely and almost certainly not the one they are picturing. A couple with 60 guests measuring against the same $34,000 are being told to spend $567 a head. The total does not transfer between guest lists. The per-guest figure does, which is why it is the one worth carrying.
Three kinds of cost, and why the schedule is a floor
Every line in a wedding budget belongs to one of three classes, and the classes behave completely differently when the guest list moves. Some costs are linear in guests: catering, bar, place settings, favours, stationery, cake, transport hired by the head. Add ten people and they add ten people's worth, exactly. Some are step functions — the venue above all, which is sold by capacity band rather than by the person, along with the tent, the tables and the shuttle. The 118th guest can cost more than the previous seventeen did, because they are the one who moves you into the next room. And some are flat: the photographer, the officiant, the licence, the attire, the rings, the band. A DJ costs the same for sixty guests as for a hundred and sixty. That third class is why the all-in cost per guest FALLS as the guest count rises — the flat block is spread across more people — and why a low per-guest figure is not evidence of a frugal wedding. It is usually evidence of a large one. Two practical consequences follow. First, the catering figure to enter is the loaded one. A caterer's quoted per-head price is frequently food and drink before service charge and before sales tax, and what actually leaves your account per plate is meaningfully higher; entering the quoted rate understates the largest scaling line in the whole budget. Second, read the guest-count schedule as a floor on what a cut is worth. It holds every fixed line constant while it varies the guests, so it shows what catering does and nothing else. In practice a genuinely shorter list unlocks a smaller room, fewer rentals, a shorter shuttle and sometimes a different venue altogether — so cutting forty guests almost always saves more than the table says, and never less.
Why the same wedding costs different amounts in different places
A wedding is bought almost entirely from local suppliers. There is no national market in reception rooms the way there is in televisions: the room is where it is, the florist drives to it, the band plays in it, and every hour of labour behind the day is priced by local wages and local property. So a national average is an average across markets that do not trade with one another, and the spread it conceals is large — larger, on the venue line, than any other source of variation in this budget. This page ships national figures and says so, because region is a categorical key and the fields on this engine are numeric; there is no dial for the Northeast. That is a real limitation, and the right response to it is not a multiplier. Applying a cost-of-living factor to a national average produces a figure with the authority of a benchmark and the accuracy of a guess. Replacing the lines does better: three real quotes on the venue and the caterer will move your total further than any adjustment factor, and they are the two lines worth the phone calls. The date is the other lever, and it costs nothing to pull. The supply of Saturdays in the peak months is fixed at a few dozen a year and demand for them is not, so the same room, the same staff and the same menu carry different prices on a Saturday in September and a Friday in February. Nothing about the day itself changes. Worth knowing too: the line benchmarks in the advanced panel are the least confirmed figures on this page, and the largest of them is the venue at $12,900 — the shakiest number attached to the biggest line. That ordering is the whole argument for treating the venue quote as the first thing you go and get, and the last thing you accept from a table.
The day, the season around it, and the shape of the cash
The total on this page prices a day. A wedding is a season, and the gap between the two is where budgets break. Around the reception sit the engagement ring — averaging $4,600 for a lab-grown stone, now the majority of purchases — the engagement party, one or two showers, the bachelor and bachelorette trips that have quietly become travel rather than an evening, the rehearsal dinner, the day-after brunch, and the honeymoon. Convention assigns several of these to other people, and the convention no longer holds reliably enough to plan on. An assumption about who is paying is not a budget line, and the cheapest hour anyone spends on a wedding is the one in which that assumption is said out loud and written down. Then there is the shape of the money, which is not level. Deposits land at booking, often a year out, and the balance falls due one to four weeks before the day, so the middle of the runway is quiet and both ends are not. Deposits are also generally non-refundable, and that is the part worth thinking about hardest, because it converts a plan into an exposure: once the venue is booked, a change of circumstances does not return the money. It is the reason to hold the contingency in cash rather than anywhere its value depends on a particular Tuesday. The card is the last lever and the worst one. This page prices a financed shortfall as a single year of simple interest at your card rate, which is a deliberate approximation — it shows the shape rather than pretending to be an amortisation schedule, and a real revolving balance compounds monthly and is repaid slowly, so the true cost runs higher and lasts longer than the figure implies. Set beside it, a shorter guest list costs nothing at all. That comparison is worth making before the deposits go down, because afterwards the only lever left is the one with a rate attached.
Frequently asked questions
How much does a wedding cost in the US?
The Knot Worldwide's 2026 Real Weddings Study puts the average at $34,000 across 117 guests — about $292 a guest all-in — from 10,474 couples who married in 2025. Note the naming: the study called 2026 describes weddings held in 2025, and it was published in February 2026. The publisher's own two channels disagree slightly, with $34,200 appearing on its consumer pages against $34,000 in the press release; $292 × 117 is $34,164, which is consistent with the higher figure.
What is the difference between cost per guest and catering per head?
Everything, and confusing them is the single most common way a wedding budget goes wrong. $292 is the WHOLE wedding divided by the guests — venue, photographer, flowers, music and all. Catering per head is food and drink only. Entering the all-in figure as a catering rate counts the venue twice; entering a catering rate and expecting it to match the national per-guest number will make your wedding look impossibly cheap.
Is catering really $80 a head?
That figure is real and it is stale. It is the 2024 value, down from $85 in 2023, and it circulates everywhere as though it were current. This page does not ship it as a default anywhere — the catering field opens at zero and asks you for a quote, because the number that matters is the one your caterer gave you, not a national one from two seasons ago.
How much does one more guest actually cost?
More than the plate. On this page a guest costs catering per head directly, and the all-in per-guest figure the tool reports — usually well above the catering rate — shows what they cost once the venue size, rentals, stationery, favours and bar are spread across them. It is why cutting twenty guests is generally the fastest lever anyone has, and why it is the one nobody wants to pull.
Are the individual line benchmarks reliable?
Less so than the headline, and the page says which is which. The $34,000 total, the $292 per guest and the 117 guest count come from the publisher's own press release. The line figures in the advanced panel — venue $12,900, photographer $2,900, florist $2,700, DJ $1,700 — are attributed to the same 2025 dataset but could not be confirmed on the publisher's own pages, and a separate source puts photography at $4,400. Treat them as starting points to overwrite with real quotes.
Does the average include the ring and the honeymoon?
No. The engagement ring is reported separately — averaging $4,600 for a lab-grown diamond, now 61% of purchases — and the honeymoon sits outside the total as well. Add both deliberately rather than assuming the $34,000 benchmark covers them, because it does not, and a couple comparing themselves to it while counting the ring is comparing two different things.
Should I finance the shortfall?
Price it first, which is what the card-rate field is for. Carrying a shortfall at 22% over two years adds roughly a fifth of the shortfall in interest, for the same day. Against that, twenty fewer guests costs nothing at all. The comparison is worth making explicitly before the deposits go down, because after they do the only remaining lever is the card.